Prevalence and correlates of urinary incontinence among older community-dwelling women.

Objectives: As the aging population in the United States grows, the investigation of urinary incontinence (UI) issues becomes increasingly important, especially among women. Using data from the California Health Interview Survey (CHIS), we sought to determine the prevalence and correlates of UI among an ethnically diverse population of older community-dwelling women.

Methods: A total of 5374 female Californians aged 65 years or older participated in a population-based, cross-sectional random-digit-dialing telephone survey. The CHIS 2003 adult survey included 1 question for Californians aged 65 years or older about UI. Additional information collected via the self-reported survey included demographics (age, race/ethnicity, education, and household income), general health data (self-reported health status, height and weight, fall history, and special equipment needs), medical comorbidities, and health behaviors (tobacco use, physical activity, and hormone replacement therapy).

Results: The estimated statewide female prevalence rate for UI was 24.4%. Prevalence rates increased with age. Urinary incontinence was significantly associated with poorer overall health (adjusted odds ratio [OR], 3.43; P < 0.001), decreased mobility (OR, 1.81; P = 0.004), current use of hormone replacement therapy (OR, 1.72; P < 0.001), being overweight or obese (OR, 1.60; P < 0.001), a history of falls (OR, 1.53; P = 0.002), and a history of heart disease (OR, 1.38; P = 0.010). After adjusting for all health factors, UI was not found to have any significant association with the level of education, household poverty status, or smoking status.

Conclusions: Urinary incontinence prevalence among this diverse group of older community-dwelling Californian women parallels that of other population-based studies. The CHIS demonstrated that poor health, increased BMI, falls, and decreased mobility are strongly correlated with UI.